FAR and DFARS › DFARS Part 234: Major System Acquisition
DFARS 234.003 Responsibilities.
The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.
The text
DoDD 5000.01, The Defense Acquisition System, and DoDI 5000.02, Operation of the Adaptive Acquisition Framework, contain the DoD implementation of OMB Circular A-109 and OMB Circular A-11.
← 234.001-70 Definitions. · 234.004 Acquisition strategy. →
Rule changes for DFARS Part 234
- Defense Federal Acquisition Regulation Supplement: Definition of Material Weakness (DFARS Case 2021-D006) ↗ · final rule 2025-01-17 · effective 2025-01-17
- Defense Federal Acquisition Regulation Supplement: Cost and Software Data Reporting for Major Weapons Systems (2021-D028) ↗ · proposed 2024-10-10 · comments due 2024-12-09
- Defense Federal Acquisition Regulation Supplement: Definition of Material Weakness (DFARS Case 2021-D006) ↗ · proposed 2024-06-27 · comments due 2024-08-26
- Defense Federal Acquisition Regulation Supplement: Data Requirements for Commercial Products for Major Weapon Systems (DFARS Case 2023-D010) ↗ · final rule 2024-05-30 · effective 2024-05-30
- Defense Federal Acquisition Regulation Supplement: Use of Fixed-Price Contracts for Certain Major Defense Acquisition Programs (DFARS Case 2023-D009) ↗ · final rule 2024-04-25 · effective 2024-04-25
Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.